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while packing pressure by decreasing the pump displacement that can greatly
reduce motor torque output, servo motors general working state is in the
working state. (The S3 state is 20 percent of the working status of 5MIN),
select 230% of the rated torque to be the motor maximum torque.
7.3.3 Servo Driver Prototyping
Capacity Selection of Servo Driver:
After the prototyping of servo drivers, please ask the servo motor supplier for
corresponding motor torque constant values Kt(Nm/A).
Note: The torque constant value Kt(Nm/A)is relevant to the servo motor
technology, materials and motor rated speed Vn(rpm).
The packing pressure current of servo driver (Follow 93% of the energy
conversion efficiency):
Imax(A)=Tmax(Nm)/ Kt(Nm/A)/93%
According to the principle that the numerical value which is less than 150
percent of servo driver rated output current, it can get the desired servo driver
model and the driver accessories model.